Flood Risk in Brocklesby, NSW: 2026 Assessment
Flood Risk Score
6.0/10Brocklesby faces a moderate risk of flooding, primarily from heavy rainfall events and the overflow of local waterways. The risk is projected to increase due to climate change.
Key Facts
- Flood Risk
- Brocklesby faces a moderate risk of flooding, primarily from heavy rainfall events and the overflow of local waterways. The risk is projected to increase due to climate change.
- Trend
- increasing
- Suburb
- Brocklesby, NSW
- Overall Risk
- Medium
- Postcode
- 2642
- Region
- Regional NSW
- Median property value
- $550,000
- Dominant hazard
- extreme heat (6/10)
- Highest high-risk exposure
- 11.7% of land (bushfire)
Flood Risk Analysis
Brocklesby, located in New South Wales, has a notable flood risk profile based on available data including proximity to waterways, elevation, and historical flood events. The Bureau of Meteorology (BOM) maintains river height and flood warning data for catchments across New South Wales.
Historical flood data indicates that Brocklesby has experienced several moderate to major flood events in the past. The council maintains flood maps and provides information to residents on how to prepare for floods.
Brocklesby faces a moderate risk of flooding, primarily from heavy rainfall events and the overflow of local waterways. The risk is projected to increase due to climate change.
For a comprehensive property-specific flood assessment including address-level elevation data, flood overlay mapping, and insurance cost estimates, use the ClimateNest full analysis tool. General suburb data cannot replace a site-specific evaluation.
Brocklesby sits within ClimateNest's suburb-level hazard model for flood risk. 7.1% of the suburb's land area is mapped in high-risk flood zones and 69.9% in moderate-risk zones, based on the national hazard overlay. Exposure at this scale varies street by street, which is why an address-level check matters before you buy or insure a specific property in Brocklesby.
On ClimateNest's 0–10 suburb hazard index, Brocklesby scores 3 for flood risk — a lower exposure relative to the Australian suburb range. For comparison, properties in Brocklesby can still sit well above or below this suburb average depending on elevation, distance to waterways or vegetation, and local drainage.
Brocklesby located in Regional NSW (postcode 2642), is a New South Wales suburb tracked by ClimateNest. The suburb's median property value is $550,000, and understanding climate exposure is becoming a standard part of due diligence for buyers, lenders and insurers pricing property in Brocklesby.
Across the six hazard axes ClimateNest models, the dominant climate risk in Brocklesby is extreme heat (score 6/10), with moderate exposure. Insurance signals for the suburb point to premiums rising moderately (+25% by 2030). These suburb-level signals help prioritise which properties need the closest look — the actual risk of any single home can only be confirmed with an address-level report.
Whether you are buying, selling or renovating in Brocklesby, extreme heat is the hazard to weigh first. Local council planning controls, state hazard mapping and lender climate policies each reference this kind of suburb-level signal, and property decisions in Brocklesby are increasingly made with an address-level climate report in hand.
Local Hazard Evidence
Historical Events
Heavy rainfall caused Billabong Creek to flood, impacting some properties in Brocklesby.
Significant flooding occurred in the region, affecting some low-lying areas of Brocklesby.
Adaptation & Mitigation Actions
Improve Flood Defenses
Near-termInvest in infrastructure improvements to mitigate flood risk, such as upgrading drainage systems and constructing levees.
Est. cost: High
Develop a Heat Action Plan
ImmediateImplement a community-based heat action plan to protect vulnerable residents during heatwaves.
Est. cost: Low
Enhance Bushfire Preparedness
Near-termSupport community initiatives to reduce bushfire risk, such as hazard reduction burns and community education programs.
Est. cost: Medium
Promote Water Conservation
Long-termEncourage water conservation measures to address the impacts of drought and climate change on water resources.
Est. cost: Low
Upgrade building codes for heat resilience
Long-termImplement building code updates to ensure new constructions are more resilient to extreme heat, including improved insulation and passive cooling designs.
Est. cost: Medium
Council & Emergency Services
Explore Brocklesby Risk Reports
View other climate risk assessments for Brocklesby:
Frequently Asked Questions
Is Brocklesby at risk of flooding?
Based on available data, Brocklesby has a notable flood risk profile. Flood risk varies by address — check your specific property for precise flood zone mapping and elevation data with ClimateNest.
What flood insurance costs can I expect in Brocklesby?
Insurance costs for flood cover in Brocklesby depend on the property's flood zone classification, elevation, and proximity to waterways. ClimateNest provides address-level insurance cost estimates based on your property's specific hazard exposure.
Does flood risk affect property values in Brocklesby?
Yes, flood risk can affect property values in Brocklesby. Properties in mapped flood zones may experience lower buyer demand, reduced valuations, and higher insurance costs. Lenders increasingly assess flood exposure as part of mortgage risk evaluation.
How does elevation affect flood risk in Brocklesby?
Elevation is a critical factor in flood risk. Properties at higher elevations within Brocklesby typically have lower flood exposure than those near waterways or in low-lying areas. Address-level elevation data combined with BOM flood mapping provides the most accurate picture.
What are the main climate risks in Brocklesby?
ClimateNest's suburb model rates Brocklesby's dominant climate risk as extreme heat at 6/10 on a 0–10 index, followed by bushfire (5/10) and damaging wind (4/10). These are suburb-level averages — an address-level report is needed to confirm the risk of a specific property in Brocklesby.
What share of Brocklesby is exposed to high bushfire risk?
ClimateNest's hazard overlay maps 11.7% of Brocklesby in high-risk zones for bushfire, with a further 72.8% in moderate-risk zones. Suburb-level exposure is not uniform — individual properties can differ from these averages, so an address-level check is recommended.
Is Brocklesby Safe from Climate Risk?
Enter your address below for an instant climate risk assessment for Brocklesby, New South Wales, covering flood, bushfire, sea level rise and more.
What A$69 could save you from
*Industry sources: ICA, APRA, RBA
Full report from A$69 · Australian addresses only · 8 hazard scores · Insurance trajectory · 2030 & 2050 projections